Automobile door lock



Jan. 10, 1939. R. H. DEAN AUTOMOBILE DOOR LOCK- 2 Sheets-Sheet 1 Filed June 7, 1937 Jan. 10, 1939. R. H. DEAN AUTOMOBILE DOOR LOCK Filed June 7, 1937 2 Sheets-Sheet 2 INVENTOR. 1% +14 @600 ATTORNEYS sequence the movements ofthe lock parts in the Patented Jan. 10, 1939 I umrso STATES" PATENT: OFFICIE stcdt Manufacturing Company. Detroit. Micin, a corporation of Michigan Application June 7. 1931, Serial No. 148,828

towns. (01. 292-104) This invention relates to an automobile door 7 lock and more particularly to anautomobile door lock which is locked from insidethe automobile by manipulation of the remote control door handle.

It is the object of this invention to produce .an improved arrangement for looking a door lock of the general type shown in the Andersen-Bowlus Patent No. 2,039,873, by manipulation of the inside remote control door handle.

In the drawings: i

Fig. 1 shows a general assembly of the lock and remote control handle with the lock unlocked. Q

Fig. 2 is a detail fragmentary view of a portion of the lock.

Figs. 3, 4 and 5 are detail views showing in locking and unlocking of the lock.

Referring more particularly to the drawings the invention is shown applied to the type of lock shown in the Andersen-Bowlus Patent No. 2,039,873. The principal parts of the lock are the same as that shown in the above referred to patant and comprise a lock frame I, sliding bolt'2,

outside rollback 3, and a bolt spring 4 for projecting the bolt 2. The spring 4 is carried by the'bolt according to the teaching of the Flynn Patent No. 1,857,684. A connector 5 is pivotally carried as at 50 by the swinging lever 8 and serves to connect the outside rollback 3 with the bolt 2. The connector 5 has an outwardly turned lug I which slidably engages the shifting lever 8 in the slot 8. The shifting lever 8 is pivoted on the frame I bythe pin Ill and is held in one or the other of its positions by the over-center-spring 12, one end of which is connected to lever 8 as at 5| and the other end to theframe I as at 52 in the same manner as shown and described in the Andersen-Bowius patent supra. Thus, shifting of the lever 8 causes the connector 5 to engage or disengage the bolt '2 thereby connecting or disconnecting the outside rollback 3 from the bolt 2.

Since it is the object of this invention to utilize the inside remote handle for locking and unlocking the lock, to this end the remote handle 13 is carried by the spindle it which is rotatably mounted on the remote handle support plate IS. The spindle It has fixed thereon the retracting lever 15 which is connected to the sliding re- A tractor plate I! by the link l8. The link I8 is pivotally connectedat one end to the lever l6 and at the other end to the sliding retractor plate II. The siidingretractor plate I! has a lost motion connection with the bolt 2 in the form of a pair of plus I! and 20 fixed on the bolt 2 which slidably engage the plate I! in the elongated slots 2| and 22. A pivoted cam plate 23 is pivotally supported on the rivet 24 which is fixed tothe latch frame I. 5 A wire spring 25 is fixed at one end to the latch frame as at 28 and has its other end turnedinwardly as at 21 for engagement with the cam plate 23 in the slot 28. The spring 25 yieldably retains the cam 23 in center or neutral position 10 as shown in Fig. 1.

'Ihe cam plate 23 is provided with lobes 3|, 32 and 33 which are arranged'for coaction with the ing 34 of the shifter lever 8 and the depending lug 35 on the sliding plate I! as described 15 below.

The operation of the lock is as follows: As shown in Fig.1, the lock is unlocked and counterclockwise rotation of the outer rollback 3 will shiit the connector 5 to the left. Since con- 20 .nector 5 is in raised position it will abut shoulder 35 on the bolt 2 and as it travels leftward retract the bolt. In unlocked positionthe lever I 8 is in neutral position, as shown in the full lines in Fig. 1, and is held in this position by 25 the remote handle return spring I! in the conventional manner. To retract the bolt 2 from the .inside, the remote handle 3 is swung counterposition indicated by the dotted lines 31. The

lever I8 is held in this position by the over-center o spring 38 of the hairpin type which has one end connected to the lever l8 as at 39 and the other and connected to the support plate l5 as at 40. As the lever '38-swings clockwise the link l8 and shifter plate I1 are shifted to the right as indi- 45 cated by the arrow, Fig. 3. As the plate I! slides. to the right, the lug 35 strikes lobe 3| and swings the cam 23 clockwise about its pivot 24 as indicated by the arrow. This causes the lobe 32 to engage the lug 34 on the shifter lever 8 and 50' the position shown As the cam plate 23 turns clockwise, it stresses the spring 25.

As soon as the lobe 3| clears the lug 35, the spring 25 rotates the cam counter-clockwise back to neutral position shown in the dotted lines, Fig. 4 and full rollback merely shifts connector 5 to theflleft without retracting the latch bolt as described in -a the Andersen-BowlusPatentNo.2,039,8'l3.-

To unlock the lock-jthefz femote handle is swung clockwise fromthei position: indicated in-the dotted lines, ng, 1, to neutral position. :This, causesplate' 11 1t 2. "At'thistime-the indicated by. the arrow in Fig.- 5,

lug 35 engages lobe- 3 lj 'and rotates the "cam pla 23 counter-clockwise thereby stressing springfl.

to slide leftward alongbc a"e"counter.-clockwisethelobe; M a I As the -2 t s bolt turning-ofgthe" outside roiiback'retracts the sh r -el en d e it-Sill? spring I! yieldably: lds the shifter lever Sin locked and unlocked-position in'thelm'anner described in the Andersom-Bowlus patent supra. As the shifter lever B shifts the connector 5 from locked to unlocked'position and vice versa, the over-center spring .12 during the initial portion of the travel of thelever 3 resists this movement and then snaps overcenter and assists the movement.

1. An automobile door lock comprising in combination a retractable latch bolt, an outside rollback, a shiftable connector between said rollback and bolt, a shifter'lever operatively connected to said connector for shifting the same into and out of engagement with said bolt whereby when the connector is shifted into engagement with the bolt turning of the outside rollback retracts the bolt, a remote insidehandle, operative connections between the remote handle and latch bolt including a plate having a lost motionconnection with the said'bolt, said plate including. a portion adapted to operate said below-mentioned cam, a cam pivoted in the path of travel of the said portion of said plate and said shifter lever whereby when the remote handle is swung in bolt non-retracting direction the'plate engages the cam to pivot the same and the cam shifts the shifter lever to disengage the connector from said bolt whereby rotation of the outer rollback is ineffective to retract the bolt.

2. An automobile door lock comprising in combination a retractable latch bolt, an outside rollback, a shiftable connector between said rollback and bolt, a shifter lever operatively connected to said connector for shifting the same into and out of engagement with said bolt whereby when the connector is shifted into engagement with the bolt turning of the outside rollback retracts the bolt, a remote inside handle, operative connections between the remote handle and latch bolt including a plate having a lost motion connection with the said bolt, said plate including a portion adapted to operate said below-mentioned lines, Fig. 5. At this timev the-lug 35 is positioned betweenlobes 3| and 32 and lug 3 has been shifted to a position adjacent the lobe 33. Th lock is now1 lockeg .anrzsrg I id door'han 1e an ou ertation otthe outs e of'the-other lobes shifts the shifterlever to dis- IF lgf "1. Flihe over-center cam, a pivoted cam having a plurality of lobes, a spring connected to said cam for yieldably maintaining the same in center position, one of said lobes being positioned in the path of travel of said portion of said plate and. the other two lobes being positioned one on each'side of said shifter lever whereby when the remote handle is swung in bolt non-retracting direction the said portion of said plate engages the first mentioned lobe on the said cam to pivot the, cam and one engage the connector from the said bolt whereby rotation of the outer rollback is ineffective to remet the bolt.

Anautomobfle door lock'comprising in cominationa retractable latchbolt, an outside rollback, a; shiitable connector between said rollback d; boltlaishiiter lever operatively connected to saidconiiector {or shifting the sameinto and out f -en'gag'eme twithsaid bolt wherebylwhen the connectorfiswshiited into engagement with the ably maintaining, the same in .center position, one of said lobes being positioned in the pathof -,'travel of saidportion of said sliding, plate and the other two lobes being positioned-one on veach side of said shifterlever whereby when the remote handle. is swung in bolt non-retracting direction the said portion of said plate engages the first mentioned lobe on the said'cam to'pivot the cam and one of the other lobes shifts the shifter lever to disengage the connector from the said bolt whereby rotation of the outer. rollback is ineffective to retract the bolt.

4. An automobile door lock comprising in combination a retractable latch bolt, an outside rollback, a shiftable connector between said rollback and bolt, a shifter lever operatively connected to said connector for shifting the same into and out of engagement with said bolt whereby when the connector is shifted into engagement with the bolt turning of the outside rollback retracts the bolt, a remote inside handle, operative connections between the remote handle and latch bolt including a plate having a sliding lost motion connection with the said bolt, said plate including a portion adapted to operate said below-mentioned cam, a pivoted cam having a plurality of lobes, a spring connected to said cam for yieldably maintaining the same in center position, one of said lobes being positioned in the' path of travel of said portion of said sliding plate and another lobe bein positioned to swing into contact with the said shifter lever whereby when the remote handle is swung in bolt non-retracting direction the said portion of said sliding plate first engages the first mentioned lobe on the said cam to pivot the cam and then slides clear of the said lobe whereupon the spring returns the cam to its initial position and whereby the secondlobe during the pivoting of the said cam shifts the shifter lever to disengage the connector from the said bolt to render the rollback ineffective to retract the bolt.

5. An automobile door lock comprising in combination a retractable latch bolt, an outside rollback, a shiftable connector between said rollback and bolt, a shifter lever operatively connected to said connector for shifting the same into and out lobes being positioned in the path of travel of 4 2,148,510 of engagement with said bolt whereby when the connector is shifted into engagement with the bolt turning of the outside rollback retracts, the bolt, a remote inside handle, operative connections between the remote handle and latch bolt including a plate having a sliding lost motion connection with the said bolt, said plate including a portion adapted to operate said below-mentioned cam, a pivoted cam having a plurality of lobes, a spring connected to said cam for yieldably maintaining the same in center position, one of said said portion of said sliding plate and the other two lobes being positioned one on each sideof said shifter lever and each arranged to swing into engagement with the said shifter lever whereby when the remote handle is swung in bolt non-retracting direction the said portion of said sliding plate first engages the first mentioned lobe on the said cam to pivot the cam and then clears the said lobe whereupon the said spring returns the cam to neutral position, one of the saidother lobes upon the turning of the said cam shifting the shifter lever to disengage the connector from the I said bolt whereby the outside rollback is .ineii'ective to retract the bolt and whereby when the remote handle is swung in bolt retracting direction the said portion of said sliding plate engages the first mentioned lobe to turn the cam in the op- POSite direction and the third lobe now shifts the shifter lever to engage the connector with the bolt to render the outside rollback eifective to retract the bolt. I

6. An automobile door lock comprising in combination a retractable latch bolt, an outside rollback, a shiftable connector between said rollback and bolt, a shifter lever operatively connected to render the outer rollback by when the remote handle is swung in bolt resaid connector for shifting the same into and out of engagement with said bolt whereby when the connector is shifted into engagement with the bolt turning of the outside rollback retracts the bolt. 8. remote inside handle, operative connections between the remote handle and latch bolt including a plate having a lost motion connection with the said bolt. said plate including a portion adapted to operate said below-mentioned cam; a pivoted cam having a lurality of lobes one of which is positioned-in t e path of travel of said portion of said plate, a spring connected to said cam for yieldably maintaining thh same in center position and for returning the cam to center position each time the first lobe clears the said portion of said plate whereby when the remote handle is swung in bolt non-retracting direction the first of said lobes is adapted ,to swing clear of said plate after initial contact with the plate during travel of the latter in bolt non-retracting and subsequently in bolt retracting directions and whereby whenthe remote handle is swung in bolt non-retracting direction the said portion of said plate first engages the first mentioned lobe to pivot the cam and then clears said lobe and the second lobe shifts the shifter lever to disengage the connector from the said bolt to ineifective and wheretracting direction the said portion of'said plate again engages the first mentioned lobe on the cam to pivot the cam in the reverse direction and the third lobe now shifts the shifter lever to reengage the connector and the bolt to render the outside rollback eifective.

, ROY H. DEAN. 

